Nyls Korstanje

Nyls Korstanje (born 5 February 1999) is a Dutch swimmer who competed for North Carolina State University and represented the Netherlands in the 2020 Tokyo and 2024 Paris Olympics. A prolific swimmer in international competition, he won two golds at the European Championships, with one in the 4x50 mixed freestyle relay in Glasgow in 2019, and one in the 4x100 mixed medley in Rome in 2022. In Long and Short Course competition, at the World Championships between 2016 and 2024, he won two silver and four bronze medals. At NC State, in 2023, he was an NCAA Champion in the 200 medley relay. He was an All American at NC State twenty-two times from 2019-2023, in various years in the 50 and 100 freestyle, the 100 butterfly, the 200 and 400 freestyle relay, and the 400 medley relay. Korstanje was an Atlantic Coast Conference (ACC) Champion a total of 11 times from 2019-2023. In 2019, he was a conference champion in the 200 and 400 medley relay, and the 200 freestyle relay. In 2020, he was a conference champion in the 50 and 100 freestyle, and both the 200 medley relay and the 400 freestyle relay. In 2022, he was again a conference champion in the 400 medley relay, and in 2023 was a conference champion in the 200 medley relay, the 200 freestyle relay, and the 400 medley relay. Recognized for his achievements in his first year at NC State in 2019, he was an Atlantic Coast Conference All-Conference Men's Freshman of the Year. A solid student, in 2019, 2022, and 2023, he was part of the Academic All-ACC Team, and in 2020 was a College Swimming Coaches's of America Association (CSCAA) Scholar All-American.

International career Korstanje helped set a new European record in the 4×50 meter freestyle mixed relay event in Copenhagen, Denmark on 16 December 2017 of 1:28.39. The medal held through 7 December 2019.

2024 Paris Improving his finishes at the 2024 Paris Olympics in early August while again competing for the Netherlands, he placed sixth in the men's 100-meter butterfly with a time of 50.83. His relay team placed eighth in the men's 4x100 medley relay where he swam the third leg with the Dutch team of Kai Van Westering, Caspar Korbeau, and Stan Pijenberg, recording a combined time in the finals of 3:32.52. He placed sixth in the mixed 4x100 meter medley relay with a combined time of 3:43.12.

Personal bests Short course Event Time Date Location 50 m freestyle 21.17 2022-07-02 Amsterdam, Netherlands 100 m freestyle 46.91 2022-07-03 Amsterdam, Netherlands 50 m butterfly 22.25 NR 2022-07-03 Amsterdam, Netherlands 100 m butterfly 49.49 NR 2022-07-02 Amsterdam, Netherlands Long course Event Time Date Location 50 m freestyle 21.98 2020-12-03 Rotterdam, Netherlands 100 m freestyle 48.86 2021-05-17 Budapest, Hungary 50 m butterfly 22.88 NR 2022-08-11 Rome, Italy 100 m butterfly 51.41 NR 2021-06-23 Budapest, Hungary